如何在厨师食谱的背景下运行java程序 [英] how to run a java program at background from chef recipe

问题描述

我是一名厨师新秀。我想创建一个在后台运行jar的配方。

I am a chef rookie. I want to create a recipe to run a jar at background.

bash 'run_jar' do
    code <<-EOH
    wget https://github.com/kiwiwin/jar-repo/releases/download/kiwi/helloworld-1.0.jar -O hello.jar
    java -jar hello.jar &
    EOH
end

helloworld-1.0.jar是程序首次打印Hello World，然后执行while（true）循环。

The helloworld-1.0.jar is a program first print "Hello World", then execute a while(true) loop.

我希望当我登录chef-client机器时。它应该表明有一个使用jps命令运行的jar。但是没有这样的罐子运行。

I expect when I login to the chef-client machine. It should indicate there is a jar running using "jps" command. But there is no such jar running.

我可以看到下载了hello.jar，表明代码块已经执行。

And I can see the hello.jar is downloaded which indicates the code block has been executed already.

这个方法有什么问题？

推荐答案

建议您将代码配置为作为服务运行。可以使用几个包装器，例如：

You are best advised to configure your code to run as a service. Several wrappers available, for example:

• http://wrapper.tanukisoftware.com/doc/english/app-hello-world-server.html

• http://wrapper.tanukisoftware.com/doc/english/app-hello-world-server.html

完成后，您可以配置厨师来管理新服务：

Once this is done you can configure chef to manage the new service:

service "myapp_service" do
  supports :status => true, :restart => true
  start_command "/usr/lib/myapp/bin/myapp start"
  restart_command "/usr/lib/myapp/bin/myapp restart"
  status_command "/usr/lib/myapp/bin/myapp status"
  action [ :enable, :start ]
end

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